![](https://www.pdfsearch.io/img/8074f2ad94cbc182bb799423174377fc.jpg) Date: 2018-05-23 11:06:23
| | Mine Injury and Worktime, Quarterly U.S. Department of Labor R. Alexander Acosta, Secretary of Labor Mine Safety and Health Administration David G. Zatezalo, Assistant SecretaryAdd to Reading ListSource URL: arlweb.msha.govDownload Document from Source Website File Size: 1,31 MBShare Document on Facebook
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